NMOS Transistors and PMOS Transistors Explained | Built In

NMOS vs PMOS and Enhancement vs Depletion Mode MOSFETs

The NMOS and PMOS transistors in the circuit of Fig. E5.15 are matched with kn(Wn/Ln) = kp(Wp/Lp) = 1 mA/V^2 and Vn = -Vp = 1 V. Assuming λ = 0 for both devices, find the drain currents iDN and iDP and the voltage vo for vi = 0V, +2.5 V, and -2.5 V. Ans. vi = 0V: 0 mA, 0 mA, 0 V; vi = +2.5 V: 0.104 mA, 0 mA, 1.04 V; vi = -2.5 V: 0 mA, 0.104 mA, -1.04 V